//from : http://www.digsys.se/js_crc.html
/*
  CRC-8 in table form

  Copyright (c) 1989 AnDan Software. You may use this program, or
  code or tables extracted from it, as long as this notice is not
  removed or changed.
*/
var Crc8Tab = new Array(
/*
  C/C++ language:

  unsigned char Crc8Tab[] = {...};
*/
0x00,0x1B,0x36,0x2D,0x6C,0x77,0x5A,0x41,0xD8,0xC3,0xEE,0xF5,0xB4,0xAF,0x82,0x99,0xD3,0xC8,0xE5,
0xFE,0xBF,0xA4,0x89,0x92,0x0B,0x10,0x3D,0x26,0x67,0x7C,0x51,0x4A,0xC5,0xDE,0xF3,0xE8,0xA9,0xB2,
0x9F,0x84,0x1D,0x06,0x2B,0x30,0x71,0x6A,0x47,0x5C,0x16,0x0D,0x20,0x3B,0x7A,0x61,0x4C,0x57,0xCE,
0xD5,0xF8,0xE3,0xA2,0xB9,0x94,0x8F,0xE9,0xF2,0xDF,0xC4,0x85,0x9E,0xB3,0xA8,0x31,0x2A,0x07,0x1C,
0x5D,0x46,0x6B,0x70,0x3A,0x21,0x0C,0x17,0x56,0x4D,0x60,0x7B,0xE2,0xF9,0xD4,0xCF,0x8E,0x95,0xB8,
0xA3,0x2C,0x37,0x1A,0x01,0x40,0x5B,0x76,0x6D,0xF4,0xEF,0xC2,0xD9,0x98,0x83,0xAE,0xB5,0xFF,0xE4,
0xC9,0xD2,0x93,0x88,0xA5,0xBE,0x27,0x3C,0x11,0x0A,0x4B,0x50,0x7D,0x66,0xB1,0xAA,0x87,0x9C,0xDD,
0xC6,0xEB,0xF0,0x69,0x72,0x5F,0x44,0x05,0x1E,0x33,0x28,0x62,0x79,0x54,0x4F,0x0E,0x15,0x38,0x23,
0xBA,0xA1,0x8C,0x97,0xD6,0xCD,0xE0,0xFB,0x74,0x6F,0x42,0x59,0x18,0x03,0x2E,0x35,0xAC,0xB7,0x9A,
0x81,0xC0,0xDB,0xF6,0xED,0xA7,0xBC,0x91,0x8A,0xCB,0xD0,0xFD,0xE6,0x7F,0x64,0x49,0x52,0x13,0x08,
0x25,0x3E,0x58,0x43,0x6E,0x75,0x34,0x2F,0x02,0x19,0x80,0x9B,0xB6,0xAD,0xEC,0xF7,0xDA,0xC1,0x8B,
0x90,0xBD,0xA6,0xE7,0xFC,0xD1,0xCA,0x53,0x48,0x65,0x7E,0x3F,0x24,0x09,0x12,0x9D,0x86,0xAB,0xB0,
0xF1,0xEA,0xC7,0xDC,0x45,0x5E,0x73,0x68,0x29,0x32,0x1F,0x04,0x4E,0x55,0x78,0x63,0x22,0x39,0x14,
0x0F,0x96,0x8D,0xA0,0xBB,0xFA,0xE1,0xCC,0xD7);

function Crc8Add(crc,c)
/*
  'crc' should be initialized to 0x00.
*/
{
  return Crc8Tab[(crc^c)&0xFF];
}
/*
  C/C++ language:

  inline unsigned char Crc8Add(unsigned char crc, unsigned char c)
  {
    return Crc8Tab[crc^c];
  }
*/

/*
  CRC-16 (as it is in SEA's ARC) in table form

  The logic for this method of calculating the CRC 16 bit polynomial
  is taken from an article by David Schwaderer in the April 1985
  issue of PC Tech Journal.
*/
var CrcArcTab = new Array(
/*
  C/C++ language:

  unsigned short CrcArcTab[] = {...};
*/
0x0000,0xC0C1,0xC181,0x0140,0xC301,0x03C0,0x0280,0xC241,0xC601,0x06C0,0x0780,0xC741,0x0500,
0xC5C1,0xC481,0x0440,0xCC01,0x0CC0,0x0D80,0xCD41,0x0F00,0xCFC1,0xCE81,0x0E40,0x0A00,0xCAC1,
0xCB81,0x0B40,0xC901,0x09C0,0x0880,0xC841,0xD801,0x18C0,0x1980,0xD941,0x1B00,0xDBC1,0xDA81,
0x1A40,0x1E00,0xDEC1,0xDF81,0x1F40,0xDD01,0x1DC0,0x1C80,0xDC41,0x1400,0xD4C1,0xD581,0x1540,
0xD701,0x17C0,0x1680,0xD641,0xD201,0x12C0,0x1380,0xD341,0x1100,0xD1C1,0xD081,0x1040,0xF001,
0x30C0,0x3180,0xF141,0x3300,0xF3C1,0xF281,0x3240,0x3600,0xF6C1,0xF781,0x3740,0xF501,0x35C0,
0x3480,0xF441,0x3C00,0xFCC1,0xFD81,0x3D40,0xFF01,0x3FC0,0x3E80,0xFE41,0xFA01,0x3AC0,0x3B80,
0xFB41,0x3900,0xF9C1,0xF881,0x3840,0x2800,0xE8C1,0xE981,0x2940,0xEB01,0x2BC0,0x2A80,0xEA41,
0xEE01,0x2EC0,0x2F80,0xEF41,0x2D00,0xEDC1,0xEC81,0x2C40,0xE401,0x24C0,0x2580,0xE541,0x2700,
0xE7C1,0xE681,0x2640,0x2200,0xE2C1,0xE381,0x2340,0xE101,0x21C0,0x2080,0xE041,0xA001,0x60C0,
0x6180,0xA141,0x6300,0xA3C1,0xA281,0x6240,0x6600,0xA6C1,0xA781,0x6740,0xA501,0x65C0,0x6480,
0xA441,0x6C00,0xACC1,0xAD81,0x6D40,0xAF01,0x6FC0,0x6E80,0xAE41,0xAA01,0x6AC0,0x6B80,0xAB41,
0x6900,0xA9C1,0xA881,0x6840,0x7800,0xB8C1,0xB981,0x7940,0xBB01,0x7BC0,0x7A80,0xBA41,0xBE01,
0x7EC0,0x7F80,0xBF41,0x7D00,0xBDC1,0xBC81,0x7C40,0xB401,0x74C0,0x7580,0xB541,0x7700,0xB7C1,
0xB681,0x7640,0x7200,0xB2C1,0xB381,0x7340,0xB101,0x71C0,0x7080,0xB041,0x5000,0x90C1,0x9181,
0x5140,0x9301,0x53C0,0x5280,0x9241,0x9601,0x56C0,0x5780,0x9741,0x5500,0x95C1,0x9481,0x5440,
0x9C01,0x5CC0,0x5D80,0x9D41,0x5F00,0x9FC1,0x9E81,0x5E40,0x5A00,0x9AC1,0x9B81,0x5B40,0x9901,
0x59C0,0x5880,0x9841,0x8801,0x48C0,0x4980,0x8941,0x4B00,0x8BC1,0x8A81,0x4A40,0x4E00,0x8EC1,
0x8F81,0x4F40,0x8D01,0x4DC0,0x4C80,0x8C41,0x4400,0x84C1,0x8581,0x4540,0x8701,0x47C0,0x4680,
0x8641,0x8201,0x42C0,0x4380,0x8341,0x4100,0x81C1,0x8081,0x4040);

function CrcArcAdd(crc,c)
/*
  'crc' should be initialized to 0x0000.
*/
{
  return CrcArcTab[(crc^c)&0xFF]^((crc>>8)&0xFF);
}
/*
  C/C++ language:

  inline unsigned short CrcArcAdd(unsigned short crc, unsigned char c)
  {                                                     
    return CrcArcTab[(unsigned char)crc^c]^(unsigned short)(crc>>8);
  }
*/

/*
  CRC-16 (as it is in ZMODEM) in table form

  Copyright (c) 1989 AnDan Software. You may use this program, or
  code or tables extracted from it, as long as this notice is not
  removed or changed.
*/
var Crc16Tab = new Array(
/*
  C/C++ language:

  unsigned short Crc16Tab[] = {...};
*/
0x0000,0x1021,0x2042,0x3063,0x4084,0x50A5,0x60C6,0x70E7,0x8108,0x9129,0xA14A,0xB16B,0xC18C,
0xD1AD,0xE1CE,0xF1EF,0x1231,0x0210,0x3273,0x2252,0x52B5,0x4294,0x72F7,0x62D6,0x9339,0x8318,
0xB37B,0xA35A,0xD3BD,0xC39C,0xF3FF,0xE3DE,0x2462,0x3443,0x0420,0x1401,0x64E6,0x74C7,0x44A4,
0x5485,0xA56A,0xB54B,0x8528,0x9509,0xE5EE,0xF5CF,0xC5AC,0xD58D,0x3653,0x2672,0x1611,0x0630,
0x76D7,0x66F6,0x5695,0x46B4,0xB75B,0xA77A,0x9719,0x8738,0xF7DF,0xE7FE,0xD79D,0xC7BC,0x48C4,
0x58E5,0x6886,0x78A7,0x0840,0x1861,0x2802,0x3823,0xC9CC,0xD9ED,0xE98E,0xF9AF,0x8948,0x9969,
0xA90A,0xB92B,0x5AF5,0x4AD4,0x7AB7,0x6A96,0x1A71,0x0A50,0x3A33,0x2A12,0xDBFD,0xCBDC,0xFBBF,
0xEB9E,0x9B79,0x8B58,0xBB3B,0xAB1A,0x6CA6,0x7C87,0x4CE4,0x5CC5,0x2C22,0x3C03,0x0C60,0x1C41,
0xEDAE,0xFD8F,0xCDEC,0xDDCD,0xAD2A,0xBD0B,0x8D68,0x9D49,0x7E97,0x6EB6,0x5ED5,0x4EF4,0x3E13,
0x2E32,0x1E51,0x0E70,0xFF9F,0xEFBE,0xDFDD,0xCFFC,0xBF1B,0xAF3A,0x9F59,0x8F78,0x9188,0x81A9,
0xB1CA,0xA1EB,0xD10C,0xC12D,0xF14E,0xE16F,0x1080,0x00A1,0x30C2,0x20E3,0x5004,0x4025,0x7046,
0x6067,0x83B9,0x9398,0xA3FB,0xB3DA,0xC33D,0xD31C,0xE37F,0xF35E,0x02B1,0x1290,0x22F3,0x32D2,
0x4235,0x5214,0x6277,0x7256,0xB5EA,0xA5CB,0x95A8,0x8589,0xF56E,0xE54F,0xD52C,0xC50D,0x34E2,
0x24C3,0x14A0,0x0481,0x7466,0x6447,0x5424,0x4405,0xA7DB,0xB7FA,0x8799,0x97B8,0xE75F,0xF77E,
0xC71D,0xD73C,0x26D3,0x36F2,0x0691,0x16B0,0x6657,0x7676,0x4615,0x5634,0xD94C,0xC96D,0xF90E,
0xE92F,0x99C8,0x89E9,0xB98A,0xA9AB,0x5844,0x4865,0x7806,0x6827,0x18C0,0x08E1,0x3882,0x28A3,
0xCB7D,0xDB5C,0xEB3F,0xFB1E,0x8BF9,0x9BD8,0xABBB,0xBB9A,0x4A75,0x5A54,0x6A37,0x7A16,0x0AF1,
0x1AD0,0x2AB3,0x3A92,0xFD2E,0xED0F,0xDD6C,0xCD4D,0xBDAA,0xAD8B,0x9DE8,0x8DC9,0x7C26,0x6C07,
0x5C64,0x4C45,0x3CA2,0x2C83,0x1CE0,0x0CC1,0xEF1F,0xFF3E,0xCF5D,0xDF7C,0xAF9B,0xBFBA,0x8FD9,
0x9FF8,0x6E17,0x7E36,0x4E55,0x5E74,0x2E93,0x3EB2,0x0ED1,0x1EF0);

function Crc16Add(crc,c)
/*
  'crc' should be initialized to 0x0000.
*/
{
  return Crc16Tab[((crc>>8)^c)&0xFF]^((crc<<8)&0xFFFF);
}
/*
  C/C++ language:

  inline unsigned short Crc16Add(unsigned short crc, unsigned char c)
  {
    return Crc16Tab[(unsigned char)(crc>>8)^c]^(unsigned short)(crc<<8);
  }
*/

/*
  FCS-16 (as it is in PPP) in table form

  Described in RFC-1662 by William Allen Simpson, see RFC-1662 for references.

  Modified by Anders Danielsson, March 10, 2006.
*/
var Fcs16Tab = new Array(
/*
  C/C++ language:

  unsigned short Fcs16Tab[256] = {...};
*/
0x0000,0x1189,0x2312,0x329B,0x4624,0x57AD,0x6536,0x74BF,0x8C48,0x9DC1,0xAF5A,0xBED3,0xCA6C,
0xDBE5,0xE97E,0xF8F7,0x1081,0x0108,0x3393,0x221A,0x56A5,0x472C,0x75B7,0x643E,0x9CC9,0x8D40,
0xBFDB,0xAE52,0xDAED,0xCB64,0xF9FF,0xE876,0x2102,0x308B,0x0210,0x1399,0x6726,0x76AF,0x4434,
0x55BD,0xAD4A,0xBCC3,0x8E58,0x9FD1,0xEB6E,0xFAE7,0xC87C,0xD9F5,0x3183,0x200A,0x1291,0x0318,
0x77A7,0x662E,0x54B5,0x453C,0xBDCB,0xAC42,0x9ED9,0x8F50,0xFBEF,0xEA66,0xD8FD,0xC974,0x4204,
0x538D,0x6116,0x709F,0x0420,0x15A9,0x2732,0x36BB,0xCE4C,0xDFC5,0xED5E,0xFCD7,0x8868,0x99E1,
0xAB7A,0xBAF3,0x5285,0x430C,0x7197,0x601E,0x14A1,0x0528,0x37B3,0x263A,0xDECD,0xCF44,0xFDDF,
0xEC56,0x98E9,0x8960,0xBBFB,0xAA72,0x6306,0x728F,0x4014,0x519D,0x2522,0x34AB,0x0630,0x17B9,
0xEF4E,0xFEC7,0xCC5C,0xDDD5,0xA96A,0xB8E3,0x8A78,0x9BF1,0x7387,0x620E,0x5095,0x411C,0x35A3,
0x242A,0x16B1,0x0738,0xFFCF,0xEE46,0xDCDD,0xCD54,0xB9EB,0xA862,0x9AF9,0x8B70,0x8408,0x9581,
0xA71A,0xB693,0xC22C,0xD3A5,0xE13E,0xF0B7,0x0840,0x19C9,0x2B52,0x3ADB,0x4E64,0x5FED,0x6D76,
0x7CFF,0x9489,0x8500,0xB79B,0xA612,0xD2AD,0xC324,0xF1BF,0xE036,0x18C1,0x0948,0x3BD3,0x2A5A,
0x5EE5,0x4F6C,0x7DF7,0x6C7E,0xA50A,0xB483,0x8618,0x9791,0xE32E,0xF2A7,0xC03C,0xD1B5,0x2942,
0x38CB,0x0A50,0x1BD9,0x6F66,0x7EEF,0x4C74,0x5DFD,0xB58B,0xA402,0x9699,0x8710,0xF3AF,0xE226,
0xD0BD,0xC134,0x39C3,0x284A,0x1AD1,0x0B58,0x7FE7,0x6E6E,0x5CF5,0x4D7C,0xC60C,0xD785,0xE51E,
0xF497,0x8028,0x91A1,0xA33A,0xB2B3,0x4A44,0x5BCD,0x6956,0x78DF,0x0C60,0x1DE9,0x2F72,0x3EFB,
0xD68D,0xC704,0xF59F,0xE416,0x90A9,0x8120,0xB3BB,0xA232,0x5AC5,0x4B4C,0x79D7,0x685E,0x1CE1,
0x0D68,0x3FF3,0x2E7A,0xE70E,0xF687,0xC41C,0xD595,0xA12A,0xB0A3,0x8238,0x93B1,0x6B46,0x7ACF,
0x4854,0x59DD,0x2D62,0x3CEB,0x0E70,0x1FF9,0xF78F,0xE606,0xD49D,0xC514,0xB1AB,0xA022,0x92B9,
0x8330,0x7BC7,0x6A4E,0x58D5,0x495C,0x3DE3,0x2C6A,0x1EF1,0x0F78);

function Fcs16Add(fcs,c)
/*
  'fcs' should be initialized to 0xFFFF and after the computation it should be
  complemented (inverted).

  If the FCS-16 is calculated over the data and over the complemented FCS-16, the
  result will always be 0xF0B8 (without the complementation).
*/
{
  return Fcs16Tab[(fcs^c)&0xFF]^((fcs>>8)&0xFF);
}
/*
  C/C++ language:

  inline unsigned short Fcs16Add(unsigned short fcs, unsigned char c)
  {
    return Fcs16Tab[(unsigned char)fcs^c]^(unsigned short)(fcs>>8);
  }
*/

/*
  CRC-32 (as it is in ZMODEM) in table form

  Copyright (C) 1986 Gary S. Brown. You may use this program, or
  code or tables extracted from it, as desired without restriction.

  Modified by Anders Danielsson, February 5, 1989 and March 10, 2006.

  This is also known as FCS-32 (as it is in PPP), described in
  RFC-1662 by William Allen Simpson, see RFC-1662 for references.
*/
var Crc32Tab = new Array( /* CRC polynomial 0xEDB88320 */
/*
  C/C++ language:

  unsigned long Crc32Tab[] = {...};
*/
0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535,0x9E6495A3,
0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD,0xE7B82D07,0x90BF1D91,
0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D,0x6DDDE4EB,0xF4D4B551,0x83D385C7,
0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC,0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,
0x3B6E20C8,0x4C69105E,0xD56041E4,0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,
0x35B5A8FA,0x42B2986C,0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,
0x26D930AC,0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F,
0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB,0xB6662D3D,
0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F,0x9FBFE4A5,0xE8B8D433,
0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB,0x086D3D2D,0x91646C97,0xE6635C01,
0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E,0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,
0x65B0D9C6,0x12B7E950,0x8BBEB8EA,0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,
0x4DB26158,0x3AB551CE,0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,
0x4369E96A,0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9,
0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409,0xCE61E49F,
0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81,0xB7BD5C3B,0xC0BA6CAD,
0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739,0x9DD277AF,0x04DB2615,0x73DC1683,
0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8,0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,
0xF00F9344,0x8708A3D2,0x1E01F268,0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,
0xFED41B76,0x89D32BE0,0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,
0xD6D6A3E8,0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B,
0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF,0x4669BE79,
0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703,0x220216B9,0x5505262F,
0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7,0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,
0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A,0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,
0x95BF4A82,0xE2B87A14,0x7BB12BAE,0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,
0x86D3D2D4,0xF1D4E242,0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,
0x88085AE6,0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45,
0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D,0x3E6E77DB,
0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5,0x47B2CF7F,0x30B5FFE9,
0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605,0xCDD70693,0x54DE5729,0x23D967BF,
0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94,0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D);

function Crc32Add(crc,c)
/*
  'crc' should be initialized to 0xFFFFFFFF and after the computation it should be
  complemented (inverted).

  CRC-32 is also known as FCS-32.

  If the FCS-32 is calculated over the data and over the complemented FCS-32, the
  result will always be 0xDEBB20E3 (without the complementation).
*/
{
  return Crc32Tab[(crc^c)&0xFF]^((crc>>8)&0xFFFFFF);
}
/*
  C/C++ language:

  inline unsigned long Crc32Add(unsigned long crc, unsigned char c)
  {
    return Crc32Tab[(unsigned char)crc^c]^(crc>>8);
  }
*/

/*
  Application functions that calculates CRC of a string
*/

function Crc8Str(str)
{
  var n;
  var len=str.length;
  var crc;

  crc=0;
  for (n=0; n<len; n++)
  {
    crc=Crc8Add(crc,str.charCodeAt(n));
  }
  return crc;
}

function CrcArcStr(str)
{
  var n;
  var len=str.length;
  var crc;

  crc=0;
  for (n=0; n<len; n++)
  {
    crc=CrcArcAdd(crc,str.charCodeAt(n));
  }
  return crc;
}

function Crc16Str(str)
{
  var n;
  var len=str.length;
  var crc;

  crc=0;
  for (n=0; n<len; n++)
  {
    crc=Crc16Add(crc,str.charCodeAt(n));
  }
  return crc;
}

function Fcs16Str(str)
{
  var n;
  var len=str.length;
  var fcs;

  fcs=0xFFFF;
  for (n=0; n<len; n++)
  {
    fcs=Fcs16Add(fcs,str.charCodeAt(n));
  }
  return fcs^0xFFFF;
}

function Crc32Str(str)
{
  var n;
  var len=str.length;
  var crc;

  crc=0xFFFFFFFF;
  for (n=0; n<len; n++)
  {
    crc=Crc32Add(crc,str.charCodeAt(n));
  }
  return crc^0xFFFFFFFF;
}

/*
  Hex convert functions
*/

function Hex8(val)
/*
  Convert value as 8-bit unsigned integer to 2 digit hexadecimal number prefixed with "0x".
*/
{
  var n;
  var str;

  n=val&0xFF;
  str=n.toString(16).toUpperCase();
  while (str.length<2)
  {
    str="0"+str;
  }
  return "0x"+str;
}

function Hex16(val)
/*
  Convert value as 16-bit unsigned integer to 4 digit hexadecimal number prefixed with "0x".
*/
{
  var n;
  var str;

  n=val&0xFFFF;
  str=n.toString(16).toUpperCase();
  while (str.length<4)
  {
    str="0"+str;
  }
  return "0x"+str;
}

function Hex32(val)
/*
  Convert value as 32-bit unsigned integer to 8 digit hexadecimal number prefixed with "0x".
*/
{
  var n;
  var str1;
  var str2;

  n=val&0xFFFF;
  str1=n.toString(16).toUpperCase();
  while (str1.length<4)
  {
    str1="0"+str1;
  }
  n=(val>>>16)&0xFFFF;
  str2=n.toString(16).toUpperCase();
  while (str2.length<4)
  {
    str2="0"+str2;
  }
  return "0x"+str2+str1;
}

/*
  Execute samples
*/

//Hex8(Crc8Str(str));
//Hex16(CrcArcStr(str));
//Hex16(Crc16Str(str));
//Hex16(Fcs16Str(str));
//Hex32(Crc32Str(str));
}